/**
 * Simple System Tests
 * Basic validation without complex dependencies
 */

const { pool } = require('../config/database');
const bcrypt = require('bcryptjs');

describe('Simple System Tests', () => {
  describe('Database Connection', () => {
    test('Can connect to database', async () => {
      const connection = await pool.getConnection();
      expect(connection).toBeDefined();
      connection.release();
    });

    test('Can query database', async () => {
      const [rows] = await pool.execute('SELECT 1 as test');
      expect(rows[0].test).toBe(1);
    });
  });

  describe('Database Tables', () => {
    test('Super admins table exists', async () => {
      const [rows] = await pool.execute('SELECT * FROM super_admins LIMIT 1');
      expect(rows).toBeDefined();
    });

    test('Tenants table exists', async () => {
      const [rows] = await pool.execute('SELECT * FROM tenants LIMIT 1');
      expect(rows).toBeDefined();
    });

    test('Subscription plans table exists', async () => {
      const [rows] = await pool.execute('SELECT * FROM subscription_plans LIMIT 1');
      expect(rows).toBeDefined();
    });

    test('Landing page settings table exists', async () => {
      const [rows] = await pool.execute('SELECT * FROM landing_page_settings LIMIT 1');
      expect(rows).toBeDefined();
    });

    test('Email notification settings table exists', async () => {
      const [rows] = await pool.execute('SELECT * FROM email_notification_settings LIMIT 1');
      expect(rows).toBeDefined();
    });

    test('WhatsApp notification settings table exists', async () => {
      const [rows] = await pool.execute('SELECT * FROM whatsapp_notification_settings LIMIT 1');
      expect(rows).toBeDefined();
    });
  });

  describe('Data Integrity', () => {
    test('Super admin exists', async () => {
      const [admins] = await pool.execute('SELECT * FROM super_admins WHERE active = TRUE');
      expect(admins.length).toBeGreaterThan(0);
    });

    test('Subscription plans exist', async () => {
      const [plans] = await pool.execute('SELECT * FROM subscription_plans WHERE active = TRUE');
      expect(plans.length).toBeGreaterThan(0);
    });

    test('Currencies exist', async () => {
      const [currencies] = await pool.execute('SELECT * FROM currencies WHERE active = TRUE');
      expect(currencies.length).toBeGreaterThan(0);
    });
  });

  describe('Security', () => {
    test('bcrypt can hash passwords', async () => {
      const password = 'test123';
      const hash = await bcrypt.hash(password, 12);
      expect(hash).toBeDefined();
      expect(hash).not.toBe(password);
    });

    test('bcrypt can verify passwords', async () => {
      const password = 'test123';
      const hash = await bcrypt.hash(password, 12);
      const isValid = await bcrypt.compare(password, hash);
      expect(isValid).toBe(true);
    });

    test('bcrypt rejects wrong passwords', async () => {
      const password = 'test123';
      const hash = await bcrypt.hash(password, 12);
      const isValid = await bcrypt.compare('wrong', hash);
      expect(isValid).toBe(false);
    });
  });

  afterAll(async () => {
    await pool.end();
  });
});
